http://www.theatlantic.com/magazine/archive/2016/12/losing-it-all/505814/?utm_source=nl-atlantic-weekly-120216
Less than 40 years ago, casino gambling was illegal everywhere in the United States outside of Nevada and Atlantic City, New Jersey. But since Congress passed the Indian Gaming Regulatory Act in 1988, tribal and commercial casinos have rapidly proliferated across the country, with some 1,000 now operating in 40 states. Casino patrons bet more than $37 billion annually—more than Americans spend to attend sporting events ($17.8 billion), go to the movies ($10.7 billion), and buy music ($6.8 billion) combined.